Hawaii is gorgeous (well, not Waikiki anymore) and you'll have a splendid time. The hot parts of the US are v-e-r-y hot right now. And brace yourself for the Vaterland Security at the airports. It's grim. I've heard that at Los Angeles airport they photograph and fingerprint all the *transit* passengers. Try not to let it color your visit. There are increasing numbers of people in the US who aren't crazy. Honest.